quickshell: drop support for 0.2, require 0.3+

- Remove all compat code
- Rewire LegacyNetworkService to use Quickshell.Networking
- Add parentWindow to settings child windows

quickshell/Common/CacheUtils.qml

@@ -1,40 +1,29 @@
 pragma Singleton
 pragma ComponentBehavior: Bound
+import QtQuick
 import Quickshell
+import qs.Common
 
 Singleton {
     id: root
 
-    // Clear all image cache
     function clearImageCache() {
         Quickshell.execDetached(["rm", "-rf", Paths.stringify(Paths.imagecache)]);
         Paths.mkdir(Paths.imagecache);
     }
 
-    // Clear cache older than specified minutes
     function clearOldCache(ageInMinutes) {
         Quickshell.execDetached(["find", Paths.stringify(Paths.imagecache), "-name", "*.png", "-mmin", `+${ageInMinutes}`, "-delete"]);
     }
 
-    // Clear cache for specific size
     function clearCacheForSize(size) {
         Quickshell.execDetached(["find", Paths.stringify(Paths.imagecache), "-name", `*@${size}x${size}.png`, "-delete"]);
     }
 
-    // Get cache size in MB
     function getCacheSize(callback) {
-        var process = Qt.createQmlObject(`
-                                         import Quickshell.Io
-                                         Process {
-                                         command: ["du", "-sm", "${Paths.stringify(Paths.imagecache)}"]
-                                         running: true
-                                         stdout: StdioCollector {
-                                         onStreamFinished: {
-                                         var sizeMB = parseInt(text.split("\\t")[0]) || 0
-                                         callback(sizeMB)
-                                         }
-                                         }
-                                         }
-                                         `, root);
+        Proc.runCommand("cache_size", ["du", "-sm", Paths.stringify(Paths.imagecache)], function (output, exitCode) {
+            const sizeMB = parseInt(output.split("\t")[0]) || 0;
+            callback(sizeMB);
+        });
     }
 }